QU-BD TwoUp Z Wobble

thingiverse

This is a QU-BD TwoUp (and other variations) modification to help reduce the Z wobble caused by the poorly supported Z axis threaded rod. This part will connect the threaded rod to part SS. This should also help correct the X Gantry sag although it will not eliminate it. The benefit of this modification over other available parts is this one does not reduce the Z travel, I find this especially important if you plan on implementing a Y wobble modification which is very likely to raise the bed. You will need to replace one of the two screws holding part SS with a longer screw. I used an M4x16. You will also need to drill and tap a hole into the exact center of the threaded rod. I do not recommend that you do this by hand. I used a #4-40x1in screw; the holes in this printed part are intentionally undersized and should be drilled out by hand (drill bits are far more accurate than this printer). Sorry, some of the colors in the renderings are messed up; but you can see which part has been added and how it fits.